Research on dynamic expression model of digital rights based on logic license
基于逻辑证书的数字权利动态描述模型研究*

At all times, dynamic expression of digital rights is always the focus in DRM.This paper presented a kind of dynamic expression model of digital right based logic license.After defining the correlative logic licenses and logic rules,deeply explored and analyzed logic reasoning process of the digital certificate.This model carried out dynamic expression of digital right through the method of logic reasoning.Finally,validated its feasibility with a simple sample.